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Region
- New Mexico7
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- United States5
- El Camino Real de Tierra Adentro National Historic Trail (N.M. and Tex.)4
- Mexico4
- Lewis and Clark National Historic Trail2
- Louisiana2
- Appalachian Region, Southern1
- Arizona1
- Big Cypress National Preserve (Fla.)1
- CaliforniaMojave National Preserve1
- Canada1
- Chihuahua Trail1
- El Camino Real de los Tejas National Historic Trail (Tex. and La.)1
- England1
- Florida1
- Idaho1
- Ireland1
- Mojave National Preserve (Calif.)1
- Old San Antonio Road (Tex.)1